| 摘要 |
PURPOSE:To eliminate the difference between the speeds of two belts which are made into contact with each other in the pulley section thereof, in their bent sections in order to aim at reducing the slide resistance thereof, by arranging the two belts such that the bending direction of the two belts is always made to be identical. CONSTITUTION:The rotational speed of a drive pulley 12 is set to be higher than that of a drive pulley 5 so that the speeds of belts 1, 2 are made to be identical with each other in bent sections thereof along pulleys 3, 4 thereby it is possible to reduce the slide load of the belts. Further, the setting of rotational speeds of the pulleys 12, 5 is made in such a way that the speed ratio therebetween is adjusted by the tooth number of a gear when only one motor is used. With this arrangement, the relative speed between two belts which make this arrangement, the relative speed between two belts which make into contact with each other may be made zero in each bent section along each pulley, thereby it is possible to aim at reducing the slide load.
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